18 is the stars of the constellation hydra
The largest of all of the constellations is Hydra. It was named after a sea serpent that was found by Hercules.
The constellation with the most stars is Hydra, which is the largest constellation in the sky. It is located in the southern celestial hemisphere and contains about 270 stars visible to the naked eye.
The third largest constellation in the sky is Hydra. Hydra is located in the southern celestial hemisphere, and is known for its elongated shape that winds across the sky. It is best seen in the months of January and February.
LHS 3003 is the closest star to earth from constellation hydra.( 20.67 light years away )
127
Proxima Centauri.
Hydra
In Greek mythology, the Hydra was a serpent-like creature slain by the hero Hercules as one of his Twelve Labors. After its defeat, the Hydra was placed in the sky as a constellation to honor the mythological tale of Hercules' triumph over the beast.
One constellation that begins with the letter H is Hydra. Hydra is the largest constellation in the sky and is often associated with a serpent in Greek mythology. It is visible in the Southern Hemisphere during certain times of the year.
Alphard
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